146 research outputs found

    On the ratio of the relativistic electron PXR in Bragg and forward direction within Bragg scattering geometry

    Get PDF
    In the present work, the parametric X-radiation (PXR) and the parametric radiation at a small angle relative to the velocity of a relativistic electron (FPXR) crossing a single crystal plate in Bragg scattering geometry are investigated within the framework of the dynamic X-ray diffraction theory. The expressions for spectral-angular density of the named radiations are derived in the general case of asymmetric reflection. The ratio of the contributions of these radiation mechanisms as a function of reflection asymmetry is considered in this work

    Coherent X-radiation of a relativistic electron on nano-scale multilayer structure in Laue scattering geometry

    Get PDF
    The coherent X-radiation of relativistic electron crossing a periodic multilayer artificial structure is considered in Laue geometry. The expressions describing spectral-angular characteristics of the radiation are derived. The possibility of the radiation photon yield material increase with change of the asymmetry of the relativistic electron Coulomb field reflection with respect to multilayer target entrance surface is considered

    Enhancement of spectral-angular density of parametric X-rays in Laue geometry due to change in the angle between a target surface and reflecting atomic planes

    Get PDF
    Coherent X-rays of a relativistic electron crossing a single crystal with a uniform velocity in the Laue scattering geometry are considered in the two-wave approximation of dynamic diffraction theoryyesBelgorod State Universit

    Interpretation of the results of the experiment on generation of parametric X-radiation by relativistic electrons in a single-crystal target

    Get PDF
    The coherent X-ray radiation generated by a relativistic electron beam in a monocrystalline target of a limited thickness is investigated in the framework of two-wave approximation of the dynamical theory of diffraction in the conditions of asymmetric reflection of the radiation waves in relation to the target surface. The calculations of the radiation angular density for the conditions of the recent experiment on generation of parametric X-ray radiation (PXR) have been carried ou

    Ratio of the parametric X-radiation yields in the Bragg direction and along the relativistic electron velocity in the Bragg geometry

    Get PDF
    Parametric X-radiation (PXR) and parametric radiation at a small angle to the relativistic electron velocity (FPXR) that arises from electron motion through a monocrystalline plate in Bragg scattering geometry are analyzed on the basis of the dynamic diffraction theoryyesBelgorod State Universit

    Parametric X-ray radiation along the velocity of relativistic electron in a Bragg scattering geometry

    Get PDF
    Based on the dynamic scattering theory, forward parametric x-ray radiation (FPXR) of a relativistic electron is investigated in a single crystal plate in a Bragg scattering geometryyesBelgorod State Universit

    Contributions of transition and parametric X-ray radiation along the relativistic electron velocity in the Laue geometry

    Get PDF
    Parametric X-radiation along the velocity of a relativistic electron (FPXR) moving through a single crystal plate is analyzed in the Laue scattering geometryyesBelgorod State Universit

    A way to increase the spectral-angular density of diffracted transition radiation of the relativistic electron in single crystal

    Get PDF
    Diffracted transition X-radiation (DTR) of relativistic electron crossing a single crystal plate of limited thickness is considered within the framework of x-ray diffraction dynamical theory in the geometry of BraggyesBelgorod State Universit

    Asymmetric wave reflection in kinematic and dynamic approaches to description of parametric X-radiation of a relativistic electron in the crystal

    Get PDF
    Parametric X-radiation (PXR) of a relativistic electron travelling through a monocrystalline plate is examined in the Laue scattering geometry under the assumption of asymmetric and symmetric reflections of the particle field with respect to a target surfaceyesBelgorod State Universit

    Parametric X-ray radiation along relativistic electron velocity in asymmetric Laue geometry

    Get PDF
    An analysis is presented of the parametric X-ray radiation emitted by a relativistic electron at a small angle to its velocity as it passes through a single crystal plate in asymmetric Laue geometry (including symmetric geometry as a particular case)yesBelgorod State Universit
    corecore